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Klipper nano expander

orobardet·klipper_nano_expander

Klipper nano expander PCB layout, top view — open source board by orobardet
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About the Klipper nano expander PCB

Klipper nano expander is an open source PCB design by orobardet, published on GitHub under the MIT license. It is a 2-layer board measuring 65.3 × 18.3 mm, with 34 components from 14 distinct parts.

By type, the board carries 12 resistors, 8 capacitors, 4 transformers, 3 transistors, 2 connectors and 1 fuse.

It belongs with the dev boards & breakouts and sensors designs in this gallery.

From the project

Klipper Nano Expander, an Arduino Nano Shield to be used as an auxiliary Klipper MCU

An Arduino Nano Shield to use with Klipper 3D printer firmware, as a auxiliary MCU.

- Only require an Arduino Nano - +5V optional external power supply with fuse - Connected to the Arduino Nano 5V - Only required if you need more than 500mA power, else the Nano power supply should be enough - x4 temperature sensors (or any analog device as input) - x3 PWM mosfet driven port (or any PWM controlled device as output) - x1 Neopixel (external 5V power supply needed)

Klipper nano expander, from the project README
From the project README

Klipper nano expander bill of materials (BOM)

34 components, 14 distinct parts — part numbers from the project's BOM.

QtyPartRefs
3
IRLML6344TRPBF
Infineon Technologies
Q1, Q2, Q3
1
+5Vin
J1
1
Conn_01x03
J2
1
Fuse
F1
3
Conn_01x02
FAN0, FAN1, FAN2
4
Conn_01x02
T0, T1, T2, T3
1
17-215SURC/S530-A2/TR8
LED
D3
2
CL21A106KPFNNNE
10uF
C1, C8
2
CC0805KRX7R9BB104
0.1uF
C2, C3
4
CC0805KKX5R8BB475
4.7uF
C4, C5, C6, C7
1
RC0805JR-071KL
1K
R1
4
RC0805JR-07100RL
100
R3, R6, R9, R15
3
RC0805JR-0710KL
10K
R4, R7, R10
4
RC0805JR-074K7L
4.7K
R11, R12, R13, R14

Klipper nano expander design files

The KiCad project lives in the orobardet/klipper_nano_expander repository on GitHub; these links point at the commit this page was built from.

Klipper nano expander: common questions

How big is the Klipper nano expander PCB?

The Klipper nano expander measures 65.3 × 18.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Klipper nano expander?

34 components, from 14 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Klipper nano expander design files?

From the orobardet/klipper_nano_expander repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Klipper nano expander design in my own project?

Yes, under the terms of its MIT license, which orobardet chose for the repository.

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